5+5=10 - Five plus five equals ten., 12-3=9 - Twelve minus three equals nine., 18-8=? - What's eighteen minus eight?, 10+5=? - What's ten plus five?, 19-12=? - What's nineteen minus twelve?, 8+10=18 - Eight plus ten equals eighteen., 20-9=11 - Twenty minus nine equals eleven., 7+6=13 - Seven plus six equals thirteen., 4+14=? - What's four plus fourteen?, 17-2=? - What's seventeen minus two?,

Math. Addition and subtraction.

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